Tuck-marker for sewing-machines.



No. 665,50l. Patented Jan. 8, mm. F. W. BEBKERT. TUCK IMBKEB FOB sswma nuxcmmzs.

. (Application filed May 26, 1900.)

(No Model.)

NIT-ED STATES PATENT OFFICE.

THE GREIST MANUFACTURING COMPANY, OF CONNECTICUT.

TUCK-MARKER FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 665,501, dated January 8, 1901.

Application filed May 26, 1900.

To all whom, it may concern.-

Be it known that I, FREDERICK W. BECK- ER'I, a citizen of the United States, residing at New Haven, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Tuck- Marking Attachments for Sewing-Machines, of which the following is aspecification, refercnoe being had therein to the accompanying 1o drawings.

This invention relates to that class of sewing-machine tuck-marking or tuck-creasing attachments adapted to be secured to the work-plate of a sewing-machine andin which the creasing of the work is effected by a vibrating arm operated from the needle-bar of the machine in cooperation with a lip or projection upon which the work rests, the invention having for its object to provide a creasing attachment of the class referred to which will be simple in construction and efficient in operation.

In the accompanying drawings, Figure 1 is a perspective view of my improved creaser or marker. Fig. 2 is a plan view, and Fig. 3 a front side view, thereof. Fig. 4 is an end view looking from the right of Fig. 2. Fig. 5 is a cross-section on line 5 5 of Fig. 2 looking in the direction denoted by the arrows adjacent to said line. Fig. 6 is a detail view of. the operating-lever with the parts thereof detached. Figs. 7 and 8 are cross-sections of the same on lines 7 7 and 8 8, respectively, of Fig. 7.

A denotes the base-plate or support of the attachment, said. plate having a hole a, by which it may be secured to the work-plate of a sewing-machine by a suitable set-screw. The plate A is provided with a split sleeve (1, the upper portion of which is formed integral with said plate and the lower portion of which is formed by a plate 0. riveted to the plate A, the said sleeve being raised somewhat above the bed or lower portion of the plate A.

B is a rod which is adjustably supported in the split sleeve a and which is clamped in any desired position of adjustment by means of a set-screw a passing through cars 50 with which the said split sleeve is provided.

To the rear end of the rod B is rigidly secured,

member.

Serial No. 18,061. (No model.)

by means of an upturned portion or ear I), a longitudinally-extending plate 17, having at its forward end an arm 5 provided with a creasing-1i p b ,and preferably formed integral 5 5 with the said plate I) is a Work-holding spring I), the said parts B, b, b, and b constituting the creasing-frame. The vibrating creasingarm a is or may be formed as a portion of a bent wire comprising looped arms 0' and c encircling the opposite end portions of the rod B, the rod 0 joining the said looped arms, and an arm a, bent over and letinto a notch or recess b in an enlarged part atthe rear end of the rod B. The vibrating creasingarm 0 (the lower end of which is notched or grooved, as usual, to cooperate with the upturned creasing-lip 19 is pivoted on the rod B by means of the connected looped arms 0 and c and the said creasing-arm is lifted after being depressed and is normally retained in a raised position by means of the arm 0 which serves as a lifting-spring, the entire piece of wire comprising the parts 0, c, 0 c and 0 being of spring metal and constituting a vibrating or rocking creasing Instead of forming the parts 0 c c in one integral piece, as shown in Fig. 1, the looped arms 0' and 0 may be joined by a connecting-sleeve 0 as shown in Figs. 2, 8o 3, and 5, and into which sleeve extensions from said looped arms are secured.

The rod B of the creasing-frame is adjustable through the sleeve a to locate the creasing devices nearer to or farther from the needle for varying the distance apart of the tucks, a graduated scale I; being preferably formed on the rod B and which, in conjunction with the end of the sleeve a adjacent to said scales, denotes the width apart of the tucks being formed.

The sleeve a is provided with asmall standard 0. on which is pivoted the operating-lever D, which rests upon the rod 0 so as to depress the said rod when said lever is depressed, 5 and thus force the creasing-arm cdown upon the work lying upon the creasing-lip b The lever D is provided with a hook d, which engages the rod 0 when the parts are lifted, and which hook thus limits the upward movemo ment of said rod 0 by its lifting-spring portion a, the said leverD being of course lifted Lil 665,501

by the rod 0 The said operating-lever D is preferably formed in two pivotally-connected parts CZ and (Z, the part d being yieldingly mounted on the part d by means of the springwire (Z secured in the part d and extending into the part (2, the said part (1 being pivoted at d to the part (Z. Each portion of the lever D is preferably formed from a piece of sheet metal bent or folded upon itself to form an arm which is U shaped in cross-section,and within which U-shaped arms the spring-wire (Z is inclosed, the said wire being attached at one end to the portion (Z of the said operatinglever. The outer or yielding portion CZ of the lever D will be arranged so as to be engaged by a screw or projection on the needlebar of the machine, and owing to the fact that said portion (1 has a spring connection with the said portion (Z, so as to yield and continue its movement after the movement of the portion (Z has been arrested, it will be understood that the pressure of the creasingarm 0 upon the work lying upon the creasinglip (Z will be cushioned or yieldingly imparted, so as to avoid such injury to the work as might occur by a positive action if no cushioning means were provided.

lhe base-plate A is provided with a raised rib a, which is received in a slot 0 of an adjustable plate E, carrying at its forward end the edge-guide e, the said plate E being overlaid by a small plate or washer 6 which is attached to the base-plate A in any suitable manner, so as to secure the said plate E to the said base-plate. The plate A is provided with a laterally-extending arm (1 having a set-screw a passing through the slot e of the plate E, and by which set-screw the said plate is secured in any desired position of adjustment, and the said plate is preferably provided with a graduated scale 6 overlaid by an index-finger 6 formed on the plate or washer 6 said scale and index denoting the width of the tucks being formed.

Having thus described my invention, I claim and desire to secure by Letters Patent 1. In a sewingmachine tuck creaser or marker, the combination with a vibrating creasing-arm and a lip or lower member cooperating therewith, of an operating-lever for said arm formed in two pivotally-connected parts one of which is yieldingly mounted on the other.

2. In a sewing-machine tuck creaser or marker, the combination with a lower creasing member or lip, of an upper vibrating or rocking creasing member formed as part of a wire frame comprising two connected looped arms and having a bearing on a stationary part of the attachment, and a lifting-spring formed integral with one of said looped arms, a creasing'frame on which said looped arms are pivolally mounted, and means for operating the said vibrating creasing member.

In a sewing-machine tuck creaser or marker, the combination with the base-plate A having the split sleeve a, a set-screw for clam ping the portions of said sleeve together, a creasing-frame adjustably supported by said sleeve and comprising the rod B and the plate I) attached to said rod and provided with an arm or portion having a lower creasing member or lip,the n pper vibrating or rocking creasing member comprising the parts 0, 0', 0 c and c, and the lever 'D for operating said vibrating creasing member.

4. In a sewing-machine tuck creaser or marker. the combination with the base-plat e A having the raised ril) a", of the creasing frame adjustably supported by said baseplate and provided with creasing devices, the plate E adjust-ably secured to the said plate A and having a slot 6 embracing said rib, and the edge-guide 0' carried by the said plate E.

5. In a sewing-machine tuch creaser or marker, the combination with the base-plate A provided with a split sleeve to, the raised rib a and the arm or portion a, of a creasingframe supported by said split sleeve, creasing devices carried by said frame, the plate E having the slot 6 embracing said rib a, an edge-guide carried by said plate E, a plate or washer overlying the said plate E and attached to said base-plate A, and a set-screw tapped in said arm or portion a and serving to secure the said plate E in any desired position of adjustment.

6. In a sewing-machine tuck creaser or marker, the combination with a vibrating creasing device and a lower lip cooperating therewith, of an operating-lever for said vibrating creasing device consisting of two parts d and (Z pivotally connected, and each of which consists of a folded piece of sheet metal U shaped in cross-section, and a springwire attached to the said part (Z and extending into the said part (Z' and serving to yieldingly mount the said part cZ upon said part (Z.

In testimony whereof I affix my signature in presence of two witnesses.

FREDERICK W. BECKERT.

Witnesses:

P. R. GRnIsT, DAVID C. MoNsoN. 

